Printer&#39;s quoin chase



C. F. WELDON PRINTERS QUOINCHASE Filed Dec. 22, 1928 May 5, 1931.

' INVENTOR.

66 45455 Fin [AMA] ATTORNEY.

W/T/VE6 5E Patented May 5, 1931 tartar 'QFFHQE CHARLES F. WELDON, OFLAKE GENEVA, WISCONSIN PRINTERS QUOIN CHASE Application filed December22, 1828.

This invention relates to improvements in printing-presses and moreparticularly to a novel chase and quoin assemblage for such presses.

The types of quoins now in general use and which are of various makesand sizes, present decided disadvantages, in their use, inasmuch as theyare assembled within the chase frame and are adjusted to effect clampingof the type composition within the chase and in using such quoins,extreme care must be exercised in selecting the proper sizesthereof andin properly arrangement the same and inasmuch as the quoins are partsseparate from and not connected in any way with the chase, there is veryfrequently a misplacement of the quoins thus causing delay andconsiderable inconvenience. Furthermore the adjustment of the quoins toeffect locking of the type composition within the chase is ordinarilymaintained merely by a frictional contact between the quoins and thesides of the chase and frequently the quoins become displaced orloosened with a resultant damage to the printing-press and a loss ofconsiderable time and labor which is involved in resetting the type inthe event of such a mishap. Therefore, in View of the disadvantageswhich attend the use of the ordinary types of quoins, the presentinvention has as one of its important objects to provide an assemblagecomprising a chase, and quoins assembled with the chase and permanentlyassociated therewith and adjustable with respect thereto so as toovercome the disadvantages attending the loss or misplacing of quoins ofthe ordinary construction and likewise insuring against any displacementof the quoins in such a manner as would result in release of the typecomposition.

In order that accurate and uniform impressions may be made from a typecomposition, it is essential that even pressure be ex erted against allfour sides of the composition but it is difficult, in the use of theordinary quoins which are separate from the chase, to obtain such anaccuracy of degree of pressure as to bring about this desirableuniformity of pressure on the type compo- Serial No. 327,881.

sition and therefore the present invention has as a further object toprovide a quoin chase assemblage comprising a chase frame and quoinsmounted upon adjacent walls of the frame and adjusting means for thequoins so constructed as to provide for a fine or accurate degree ofadjustment of the quoins bodily, the invention further embodying meanscoacting with the quoins and with the sides of the chase frame uponwhich they are mounted, for maintaining the quoins in position withtheir engaging faces precisely parallel to the said walls of the chaseboth in the operation of the adjusting means to feed the quoins inwardlyto clamping position and in the retracting operation to retract thequoins from clamping engagement with the type composition. Therefore thepresent invention contemplates a construction in which the quoins areautomatically at all times held parallel to the sides of the chase frameupon -which they are mounted thereby insuring of even pressure of eachquoin, for its entire length, against the type composition or, morespecifically, the furniture which is disposed about the composition.

Another object of the invention is to provide a quoin chase assemblageof such construction that the quoins are movable only in one direction,namely, toward and away from the side wall of the chase frame upon whichthey are mounted, so that there can be no longitudinal or verticaldisplacement or any other movement of the quoins which would be liableto disturb the arrangement of the type in the composition or result inan uneven pressure being exerted against the furniture confining thecomp ositiona While the accompanying drawings and the description whichis to follow, constitute a disclosure of the preferred embodiment of theinvention, it will be understood that various changes may be made withinthe scope of what is claimed.

' In the accompanying drawings:

Figure 1 is a plan view of the quoin chase assemblage embodying theinvention, the view illustrating, in broken lines, the furniture whichis disposed about the sides of the type composition within the chasewhich sides are to receive pressure from the quoins, and the quoinsbeing illustrated in this figure in engaging or clamping position;

Figure 2 is a detail fragmentary horizontal sectional view through aportion of the chase and one of the quoins and illustrating the meansprovided for guiding and adjusting the quoins;

Figure 3 is a vertical transverse sectional View taken substantially onthe line 33 of Figure 2 looking in the direction indicated by thearrows;

Figure l is a fragmentary sectional perspective view of one corner ofthe chase frame;

Figure 5 is a group perspective view illustrating the component parts ofone of the quoins separated from the chase frame.

The chase frame of the assemblage embodying the invention is indicatedin general by the numeral 1 and is of the usual rectangular form and, inorder that the quoins, which embody the invention, may be mounted in theframe together with the adjusting means for the quoins, the said frameis formed in each of two relatively adjacent sides, with two or morerecesses 2 which recesses are preferably equi-disantly spaced, or nearlyso, as shown in Figure 1 of the drawings. For a purpose to be presentlyexplained, the inner plane wall 3 of each recess, which wall is parallelto the inner wall of the side or end member of the frame 1 in which therecess is formed, is provided, in turn, with a longitudinally extendingrecess 4, the recess 2 including, in addition to the plane inner wall 3,end walls 5 which occupy planes at right angles to the said wall 8, andthe recess 4 being defined by an inner plane wall and end walls 6 whichare at right angles there-to and equi-distantly spaced with respect tothe corresponding end walls 5 of the recess 2. It willbe observed thatboth the recesses 2 and i open through the upper and under sides of thechase frame member in which they are formed and it will likewise beobserved by reference to Figures 1 and 2 of the drawings that therecesses are of substantially the same depth.

The equoins of the assemblage are indicated in general by the numeral 7and each quoin comprises an oblong rectangular body 8 which is of alength equal .to the length of the recess 2 in which it is mounted, sothat its ends will nearly abut the end walls 5 of the recess,

and the said body is of a height equal to the thickness :of the wall ofthe chase frame 1 in which the recesses 2 are formed, the body 8 beingfurthermore of a thickness equal substantially to the width of the endwalls 5 of the recess 2 or in other words .of a width substantiallyequal to the depth of the recess so that when the body is fullyretracted and seated in the recess in which it is arranged, its facewhich is presented inwardly, will occupy the same plane as that occupiedby the inner side of the frame member in which the recess is formed. Theinvention contemplates adjustment of the quoin bodies with respect tothe members of the chase frame in the recesses in which they aremounted, so as to adapt the plane faces of the quoin bodies to bearagainst the furniture which is arranged to enclose the type composition,and in order that the body 8 of each quoin may be supported and guidedin its adjustment, cylindrical sockets 9 are formed in the inner planewall 3 of the recess 2 in which the quoin body is to be mounted andthese sockets are located adjacent the end walls 5 of the said recess.The body 8 of the quoin is provided upon that face opposite the facewhich is to constitute the pressure face, near each "end thereof, with atubular stem 10 and'these stems are snugly slidably fitted in thesockets 9, so that, inasmuch as the sockets are parallel to each other,as are also the stems, the bodies of thequoins will be maintained inparallelism to the sides of the chase frame in all positions ofadjustment of said bodies. The stems 10 are tubular and the bores of thestems extend the entire length thereof, and compression springs 11 arefitted into the bores of the stems and, in their expanded form, are ofconsiderably greater length than the stems. In assembling the quoin withthe chase frame, the quoin is disposed opposite the recess 2 in which itis to be mounted and the said ends of the stems are guided into thesockets and the stems are then slid into the sockets, the springs 11engaging at their projecting ends against the inner end walls of thesockets, as shown in Figures 2 and :3 of the drawings, and the springs,being of the length stated, are thus placed under tension and thetendency of the springs is therefore to'force the quoin outwardly fromthe recess in which it is seated. In order that this movementof thequoins may be restricted and likewise in order that force may be exertedagainst the quoin in order to cause it to exert pressure against thefurniture in the chase, means is provided which will now be .described.

The means referred to comprises a screw 12 having reversely threaded endportions 13 extending :between its extremities and the opposite'faces ofa polygonal head 14: is formed midway between the ends of the screwshank, and a. threaded socket 15 is formed in the side of the chaseframe and opens through the inner wall 4 of the recess 2 midway betweenthe end walls 6 of said recess, and a threaded opening 16 is formed inthe quoin body 8 intermediate the ends thereof, the threads of thesocket l5 and opening 16 being reversely directed, so that the threadedends of the adjusting screw 12,

when engaged in the socket 15 and opening 16, will serve to connect thebody of the quoin with the side of the chase frame with which it isassembled, and it will now be evident that by rotation of the screw 12,through the application of a suitable wrench to the polygonal head 14thereof, the head being freely accommodated within the recess 4, thequoin body may be adjusted either inwardly or outwardly and, in therotation of the screw in a direction to provide for outward adjustmentof the quoin with respect to the recess and consequently its adjustmentinto binding engagement with the furniture of the type compositionwithin the chase, the quoin will not only be moved outwardly by thefeeding action of the threads of the screw, but also by the pressureexerted by the springs 11, in their expansion so that the quoin will besteadied in its outward adjustment from the recess and thus maintainedand guided exactly in parallelism with the side of the quoin chase, theengagement of the stems 10 in the sockets 9 preventing any play ordisplacement of the quoins with respect to the said side of the chaseframe, and likewise preventing any play between the threads of the screwand those of the socket 15 and opening 16. Therefore the inventioncontemplates a positive adjustment of each quoin of the structure by arotative adjustment of the respective screw 12 and it will be evidentthat there is a positive movement imparted to each quoin, as it isadjusted, and that there is no likelihood of any displacement ordistortion of the quoin either before or after it has been brought intobinding engagement with the furniture in the chase. It will be evidenttherefore that the present invention provides a means whereby quoins aremounted in a chase frame and held against any displacement, means being,at the same time, provided for adjusting the quoins and for positivelymaintaining the quoins parallel to the sides of the chase frame uponwhich they are mounted, at all periods 1n the operation of adjustment,thereby insuring of a positive and secure clamping of the typecomposition and the furniture assembled therewith, in the chase frameand effectually providing against any disarrangement of the composition.

Having thus described the invention, what I claim is:

A printing-press chase and quoin assemblage comprising a chase frame,aquoin, the chase frame having spaced sockets therein, spaced stems uponthe quoin of greater length than the thickness of said quoin slidablyfitting in said sockets and constituting means for slidably supportingthe quoin with respect to the said side of the chase frame foradjustment toward and from the same and bracing the quoin when the quoinis moved beyond the chase frame and preventing lateral displacement ofthe quoin, the said stems and sockets constituting also means formaintaining the said quoin parallel to the said side of the frame,springs within the sockets coacting and extending within said stems andurging the stems outwardly in the sockets and constituting means fornormally urging the quoin'away from the said side of the frame, thequoin and frame having threaded sockets therein in opposition to eachother, the threads in the sockets being oppositely directed, and anadjusting screw having oppositely threaded end portions fitting in saidsockets and an intermediate head of polygonal contour for theapplication of a tool for effecting adjustment of said screw to effectpositive adjustment of the quoin in either direction with respect to thesaid side of the frame.

In testimony whereof I afiix my signature.

CHARLES F. WELDON.

